/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.linkis.cs.client.listener;

import org.apache.linkis.common.listener.Event;

/** Description: Manager的作用是为了方便用户将的 */
public class ContextClientListenerManager {

  private static ContextClientListenerBus<ContextClientListener, Event> contextClientListenerBus;

  public static ContextClientListenerBus<ContextClientListener, Event>
      getContextClientListenerBus() {
    if (contextClientListenerBus == null) {
      synchronized (ContextClientListenerManager.class) {
        if (contextClientListenerBus == null) {
          contextClientListenerBus = new ContextClientListenerBus<ContextClientListener, Event>();
        }
      }
    }
    return contextClientListenerBus;
  }
}
